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-is to determine the bacterial filtration efficiency (BFE) of medical face mask materials by employing a ratio of the upstream bacterial challenge to downstream residual concentration of the tested medical face mask materials. The tester provides certain flow rate of bacterial aerosol. The operator can measure the number of colony forming units passing through the medical face mask material, which is clamped between a six-stage Anderson cascade impactor and an aerosol chamber, expressed as a percentage of the number of colony forming units present in the challenge aerosol.VnqTextile Testing Instruments, Testing Equipment Manufacturer
VnqTextile Testing Instruments, Testing Equipment Manufacturer
Standards>VnqTextile Testing Instruments, Testing Equipment Manufacturer
EN 14683 Medical face masks-Requirements and test methods.VnqTextile Testing Instruments, Testing Equipment Manufacturer
ASTM F2101 Standard Test Method for Evaluating the Bacterial Filtration Efficiency (BFE) of Medical Face Mask Materials, Using a Biological Aerosol of Staphylococcus aureus.VnqTextile Testing Instruments, Testing Equipment Manufacturer
ASTM F2100 Standard Specification for Performance of Materials Used in Medical Face MasksVnqTextile Testing Instruments, Testing Equipment Manufacturer
YY 0469 Technical requirements for surgical mask.VnqTextile Testing Instruments, Testing Equipment Manufacturer
VnqTextile Testing Instruments, Testing Equipment Manufacturer
VnqTextile Testing Instruments, Testing Equipment Manufacturer
Features>VnqTextile Testing Instruments, Testing Equipment Manufacturer
Test types: Penetration efficiency, penetration resistance and flow rate, etc.;VnqTextile Testing Instruments, Testing Equipment Manufacturer
Alarm system: Users can set alarm time points according to their needs, so as to facilitate operation and management;VnqTextile Testing Instruments, Testing Equipment Manufacturer
Data output: RS-232 communication port.VnqTextile Testing Instruments, Testing Equipment Manufacturer
VnqTextile Testing Instruments, Testing Equipment Manufacturer
Technical Parameter>VnqTextile Testing Instruments, Testing Equipment Manufacturer
Physical features:VnqTextile Testing Instruments, Testing Equipment Manufacturer
Dimension: 22 inches width*45 inches height*30 inches length;VnqTextile Testing Instruments, Testing Equipment Manufacturer
Weight: 185 pounds; 64kg;VnqTextile Testing Instruments, Testing Equipment Manufacturer
Power supply: 115VAC,60Hz,2.5A;230VAC,50Hz,1.25A;VnqTextile Testing Instruments, Testing Equipment Manufacturer
Compressed air supply: 10scfm @ 80psig(283slpm @ 5.6kg/cm2;VnqTextile Testing Instruments, Testing Equipment Manufacturer
Recommended minimum internal diameter of compressed air:9.5mm;VnqTextile Testing Instruments, Testing Equipment Manufacturer
Exhaust system: emission load is near 180Ipm.VnqTextile Testing Instruments, Testing Equipment Manufacturer
Aerosol generator:VnqTextile Testing Instruments, Testing Equipment Manufacturer
Generating system: Pneumatic spray ;VnqTextile Testing Instruments, Testing Equipment Manufacturer
Aerosol types: DOP, DEHP, PAO-4;VnqTextile Testing Instruments, Testing Equipment Manufacturer
Diameter: 0.18um; complying with NIOSH 42 CFR Part 84;VnqTextile Testing Instruments, Testing Equipment Manufacturer
Geometrical deviation: less than 1.6; complying with NIOSH 42 CFR Part 84;VnqTextile Testing Instruments, Testing Equipment Manufacturer
Concentration range: 20-200mg/m3;VnqTextile Testing Instruments, Testing Equipment Manufacturer
Liquid consumption:8.8ml DOP/ DEHP.
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